If the 'release/renew' steps above don't fix the problem, then you can try something that is referred to as 'Power Cycling' your modem.
(Vista users will have to right click 'Command Prompt' and run it as administrator) The following list will show you how to do so.
The very first thing to do is try to do a so called 'release/renew' which will renew your connection with the gateway. If these self-help steps don't work, you can always post on the forum and get more detailed help. I will give you some some simple methods to try and fix this problem. Most of the times these issues are simple to solve, however sometimes there's a little trick to it. A lot of the network issues we see are the 'Limited or No Connectivity' issues.
